Third Party authentication protocol.

remoting/protocol/authenticator.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/protocol/authenticator.h"
 
+#include "base/logging.h"
 #include "remoting/base/constants.h"
 #include "third_party/libjingle/source/talk/xmllite/xmlelement.h"
 
 namespace remoting {
 namespace protocol {
 
 namespace {
 const buzz::StaticQName kAuthenticationQName = { kChromotingXmlNamespace,
                                                  "authentication" };
 }  // namespace
 
 // static
 bool Authenticator::IsAuthenticatorMessage(const buzz::XmlElement* message) {
   return message->Name() == kAuthenticationQName;
 }
 
 // static
 scoped_ptr<buzz::XmlElement> Authenticator::CreateEmptyAuthenticatorMessage() {
   return scoped_ptr<buzz::XmlElement>(
       new buzz::XmlElement(kAuthenticationQName));
 }
 
 // static
 const buzz::XmlElement* Authenticator::FindAuthenticatorMessage(
     const buzz::XmlElement* message) {
   return message->FirstNamed(kAuthenticationQName);
 }
 
+void Authenticator::PerformExternalAction(
+    const base::Closure& resume_callback) {
+  // Implementations that use a WAITING_EXTERNAL state must override this.
+  NOTREACHED();
+}
+
 }  // namespace protocol
 }  // namespace remoting